Clip attachment for paint brushes for mounting a secondary brush



L. F. KURSCHNER 2,917,763 CLIP ATTACHMENT FOR PAINT BRUSHES F OR MOUNTING A SECONDARY BRUSH Filed July 29, 1955 Dec. 22, 1959 ATTORILEY CLIP ATTACHIVIENT FOR PAINT BRUSHES FOR MOUNTING A SECONDARY BRUSH Lloyd F. Kurschner, Minneapolis, Minn.

Application July 29, 1955, Serial No. 525,208

1 Claim. (Cl. 15106) My invention relates to an improvement in brushes used to apply paint and the like by hand and more particularly to a brush unit including an auxiliary brush having means for mounting the same on a conventional brush to thereby produce a selective brush unit.

In hand painting many types of structures it is often necessary to use a brush with a relatively wide bristle portion for certain portions of the structure and for adjacent portions of the structure a brush having a different size bristle is needed, the two sizes being alternately and frequently used on a given job. With this requirement for different size brushes on a single structure it is burdensome and inconvenient to carry and use two separate and different size brushes.

With the above in mind it is an object of my invention to provide means for mounting an auxiliary brush on a brush whereby either brush may be easily selected for use. It is also an object of my invention to provide a brush unit having two bristle members with means for maintaining the bristle units in intimate contact with each other to thereby maintain both bristle units wet with paint for immediate use of either unit.

It is also an object of my invention to provide a multibristle unit brush with which one of the bristle units may be easily selected for use or easily placed in non-operative position.

I shall not here attempt to set forth and indicate all of the various objects and advantages incident to my invention but other objects and advantages will be referred to in or else will become apparent from that which follows.

The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawings, showing by way of example a preferred embodiment of the invention idea wherein like numerals are employed throughout.

In the drawings forming part of this application:

Figure 1 is a perspective view of my selective brush unit including an auxiliary brush and mounting positioned on a brush with the auxiliary bristle unit shown in extended position in broken lines.

Figure 2 is a perspective view of a further embodiment.

Figure 3 is a section on the line 3-3 of Figure 1.

Figure 4 is a section on the line 4-4 of Figure 2.

Figure 5 is a section on the line 5-5 of Figure 1.

Figure 6 is a section through a further alternative form.

Figure 7 is a perspective view of the brush holding clamp-on member shown in Figure 2 in flattened condition.

Referring to the drawings in detail, my brush unit A is composed of the conventional primary brush B having the handle 10 which includes the upper portion 11 and the lower base portion 12. The upper ends of the bristles 13 of the primary brush B are generally vulcanized in rubber and compressed within and held by the casing member 14 mounted on the lower base portion 12 of the handle 10. I further provide the clamp-on base member 15 which is easily mounted on the member 14 as illustrated in Figures 1, 3 and 5. The member 15 includes the rear side portion 16, the arcuated end portion 17, the front plate portion 18, the arcuated end portion 19, the outer rear side portion 20, and the arcuated hook end portion 21 which overlies the arcuated portion 17 to securely clamp the band member 15 on the casing member 14.

The front plate portion 18 of the band 15 has formed thereon at the upper and lower edges thereof the raised arcuated inverted channel portions 22 and:23 adapted to receive the elongated cylindrical handle 24 of the secondary brush C formed with the bristles 25. With the handle 24 extending through the arcuated inverted channel portions 22 and 23, the bristles 25 Ofwthe brush B r overlie and are held in intimate contact with the bristle 13 where the same can absorb paint therefrom.

Positioned centrally in the front plate portion 18 is the elongated opening 26 which lies directly beneath the handle portion 24. Positioned in the opening 26 and resting on the casing 14 is the fiat spring member 27 which is curved sufliciently to bear against the underside of the handle portion 24 to maintain the handle of the brush C in a retracted position where the bristles 25 do not extend beyond the bristles 13 when said latter bristles are used. The bristles 25 may also be moved into the extended position shown in broken lines as in Figure l where the bristles 25 are desired for use. The bristles 25 remain in the extended position due to the pressure of the spring 27 against the handle 24.

The ends of the spring 27 abut the edges 27' of the transverse portions 28 which define the ends of the slot 26.

In Figures 2 and 4 I disclose an alternative form 29 of my band member 15. The band 29 includes the front plate portion 30, the two arcuated end portions 30', and the overlapping rear side portions 31 and 3.2. The front plate portion 30 has formed therein the raised longitudinally extending arcuated portion 33 extending the length of the band 29 and through which. the brush C is frictionally engaged.

In Figure 6 I show a sectional view similar to that of Figure 4 through a handle base portion and a casing member, such as 12 and 14 respectively of Figures 1 and 2, with an alternative construction. The alternative construction of Figure 6 includes the handle base Portion 12 which has the channel 34 formed longitudinally thereof in the surface 35 of the same before the casing 36 is applied thereon.

The casing 36 is the conventional type: hereinbefore described and overlies the channel 34. The channel 34 extends into the handle portion and the diameter of the brush handle 24 is such that it will frictionally slip under the casing 36 and in the channel 34. With this construction the brush handle portion 24 may be adjusted and held in different positions as in Figures 1 and 2 for use and non-use and the handle portion 24 does not protrude beyond the surface of the brush B.

I have thus provided a selective hand brush unit with which a clamp-on member may be easily mounted on a conventional brush, the clamp-on or wrap around member slidably mounting a smaller hand brush thereon for Patented Dec. 22, 1959 provided with bristles andco'nve ntional handles for manual manipulation, a mount detachably secured to the base of the handle of the primary brush, said mount being in the form of a clip having an outwardly projecting and longitudinally disposed Ll-shaped channel members endwisebeyond the outer end portions of the bristlesof the primary brush.

References Cited in the file of this patent UNITED STATES PATENTS Baldwin Jan. 23, 1894 Brooks Dec. 25, 1894 Benkosky Sept. 17, 1926 Zaiger Feb. 23, 1943 Hawkins Sept. 14, 1943 Kravitt Dec. 17, 1957 FOREIGN PATENTS Great Britain July 14, 1914 Australia Jan. 24, 1938 Austria May 25, 1927 France July 8, 1927 OTHER REFERENCES Article in Washington Post, Sunday, May 4, 1952, The Parade Section, page 17, entitled A Handy N 20 Paint Brush." 

